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  Trina TallMax M Plus solar panel  specifications 144-Cell Monocrystalline Solar Panel
Trina Model Number TSM-400 DE15M(II)
STC Rating 400 Watts
PTC Rating 301
Open Circuit Voltage (Voc) 49.0 Volts
Short Circuit Current (Isc) 10.45 Amps
Frame Color 35mm Anodized Aluminum Alloy
Origin China
Power Tolerance -0 / +5W
Module Efficiency 19.2-20.4%
Area 21.87 ft²
Weight 50.26 lbs.
Length 80.07 in.
Width 39.52 in.
Height 1.37 in

Commercial Solar System Prices

Low prices on complete commercial
Trina TALLMAX M Plus solar panel systems.

Toll-Free: (877) 297-0014

Trina Tallmax M TSM-400 DE15M(II) 400W 144-cell Solar Panel

SKU Trina TSM-400 DE15M(II)

Trina Solar

Trina Tallmax M TSM-400 DE15M(II) 400W 144-cell Solar Panel

Trina 144-cell  solar panel
Trina Solar Tallmax M 
TSM-DE15M(II) 144-cell solar panels feature Monocrystalline solar cells.


This Tallmax M module integrates various technologies like half-cut cells and multi-busbar, with the highest power up to 415W. Multi-busbar can shorten the current conduction distance by over 50% and thus lower the internal ribbon resistance loss. With finer and narrower busbars, more sunlight can be reflected back to the round ribbon, thus increasing energy efficiency. Besides, the unique circuit design of half-cut cells can reduce power loss caused by ribbon resistance to 1/4 compared to full cells, which results the decrease of electrical resistance within the ribbon and finally improves the overall module efficiency

Higher return on investment thanks to higher power output

The output of this Tallmax M module is 15W higher than that of industry-typical 5BB PERC modules with the same specifications. Application of this Honey M module can remarkably reduce the number of modules employed in a power station, thus lowering corresponding cost of supports, cables, construction and land, improving the return on investment.

Exceptional reliability

The Tallmax M module is one of the industry’s most trusted modules. Low hot spot occurrence and half-cut cell technology can reduce failures, improving safety and performance. The application of multi-busbar cells results in more uniform loads to prevent stress, resulting in better performance even in case of slight cracking. Nowadays the market share of PV modules featuring MBB technology is dominant in the global solar industry.

Trina TallMax M TSM-DE15M(II) Features

  • Efficient solar panel w/ 144 Monocrystalline solar cells
  • 400W Power Output
  • 19.7% Maximum Efficiency
  • 0~+5W Positive Power Tolerange
  • 25 year linear performance warranty
Trina Allmax M Plus TSM-DD05H.05(II) warranty

Trina Solar Tallmax Solar Panel Warranty

Trina guarantees their module output to be at or above its nameplate wattage, and they back every module with a 10-year product and a 25-year linear power output warranty.

Comprehensive Product And System Certificates 

  • IEC61215/IEC61730/UL1703
  • IEC61701 Salt Mist Corrosion
  • IEC62716 Amonia Corrosion
  • IEC60068 Blowing Sand
  • ISO9001; ISO14001; OHSAS18001
Allmax certifications

Trina Tallmax M TSM-DE15M(II) 144-cell Solar Panel Review

flat roof Trina solar panel systems

half-cell design

High power output

• Multi busbar technology combined with mono PERC cells
• Reduced BOS costs with higher power bins and 1,500V system voltage
• Consistently high bankability ratings by BNEF, banks and investors

TSM reliablility

Half-cut cell design brings higher efficiency

• Optimized power output under inter-row shading conditions
• Low thermal coefficients for higher energy yield 
at elevated operating temperatures
• Reduced interconnection losses

Trina ISO

Highly reliable due to stringent quality control

• Over 30 in-house tests (UV, TC, HF, and many more)
• In-house testing goes well beyond certification requirements
• PID resistant
• 2x 100% inline EL ispection

Trina solar panel certified for harsh weather

Certified to withstand challenging environmental conditions

• Salt Mist Corrosion
• Ammonia Corrosion
• Blowing Sand


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